What is Double Fertilization? It is a type of reproduction observed in angiosperms in which the male gamete fertilizes the egg and polar nuclei of the female embryo sac. As double fertilization( one male...
Key points: Friction does not oppose the motion, but it opposes relative movement between the contact surfaces. When there is no relative motion between the contact surfaces, then no friction force...
Tip #1 From the NCERT book, practice each and every worked-out example, graph and diagram, especially- a) Ray diagram for Astronomical Telescope, Compound Microscope and Reflecting Telescope. b) Diagrams...
We should note the following concepts when solving a Two-Body Collision Numerical:-Distance Between the centres of two Bodies -"b."When we have two objects colliding with each other, we assume both are...
Are you scared of numerical? Do you think you don't understand them? If yes, then read ahead. See, it might be any exam, but numerical won't leave your back. So let's talk about common problems and their...